rantlab post 1.3

gistfile1.m

CGPathRef endPath = [RLArrowView createPathWithArrowFromPoint:middle
                                                      toPoint:target
                                                    tailWidth:2.0
                                                    headWidth:10.0
                                                   headLength:20.0
                                                       wiggle:0];

	    
[NSAnimationContext runAnimationGroup:^(NSAnimationContext *context){
    
    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"path"];
    animation.duration = 0.15;
    animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
    animation.repeatCount = 0;
    animation.autoreverses = NO;
    animation.fromValue = (__bridge id)startPath;
    animation.toValue = (__bridge id)endPath;
    [arrow addAnimation:animation forKey:@"animatePath"];
    arrow.path = endPath;
    
} completionHandler:^{
    [self wiggleFromPath:endPath target:target amount:1.0];
}];